close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2130447

код для вставки
SePt- 29, 1938
H. R. ROBINSON ET AL
2,130,447
LAMP
Filed Oct.‘ 28, 1937
, film/727
?aw/v50 ,
44/542 J4 Maya/v7”;
3% W#M
2,130,447
Patented Sept. 20, 1938
UNITED STATES PATENT OFFiCE
2,130,447
LAMP
Hilyard R. Robinson, Washington, D. 02, and Aksel
J. C. Knudstrup, Vienna, Va.
Application October 28, 1937, Serial No. 171,584
3 Claims. (Cl. 240-81)
This invention relates to lamps and more par
ticularly to a lamp which is adapted to provide
di?used light which may be re?ected either up
wardly or downwardly or both.
Another object of this invention is to provide
in a lamp structure for providing diffused light,
means for adjustably supporting the re?ectors so
that the light rays may be directed or spread to
the desired degree.
10
Another object of this invention is to provide a
lamp structure which may be used as a ?oor or
table lamp wherein the light bulbs are sub—
stantially concealed in re?ectors which may be
adjusted relative to the light bulbs so as to con
trol the di?usion of the light rays.
A further object of this invention is to provide
‘ in a light structure for this kind means for cool
ing the reflectors positioned about the light bulbs.
A still further object of this invention is to
provide an improved means‘ for supporting a
portion of the indirect light re?ector so that
light rays may be projected upwardly and down
wardly from between this portion of the in
verted re?ector.
Still another object of this invention is to pro
vide in a light or lamp structure, a plurality of
annular louvers. and supporting means therefor
so as to prevent glare from the re?ector from a
position laterally therefrom in addition to con
30 con?ning the light rays in a particular ?eld.
To the above ends essentially and to others
which may hereinafter appear,_ the invention
consists of the novel construction, combination
and arrangement of parts as will be more speci
35 ?cally referred to and illustrated in the accom
panying drawing wherein are shown several em
bodiments of the invention, but it is to be under
stood that changes, variations and modi?cations
may be resorted to which fall within the scope
40 of the invention as claimed.
In the drawing:
Figure 1 is a vertical section partly broken
away and in section of a lamp structure con
45
structed according to an embodiment of this in
Referring to the drawing the numeral i0 desig
nates generally a standard which is provided with
a base structure H at the lower end thereof. 5
This standard it! is of tubular construction and
is mounted in an annular ?ange l3 provided in
the upper portion of the base ii. The base ll
comprises a plate i2 to which is secured as by a
bolt ill, a second or lower plate H5. The lower
plate 15 carries a plurality of feet i6 which in
clude cushioning members H. A hollow body I8
is disposed above the base plate 12 and is pro
vided with an annular outer portion l9 terminat
ing in a dependent ?ange 26 which engages about
the two plate members I2 and I5.
A lower re?ector 21 provided with an annular
lower flange 22 is supported on .a cylindrical sup
porting member 23 carried by a sleeve 24. The
supporting member 23 engages about the ?ange
22 and contactswith a shoulder 25 provided
between the lower end of the re?ector 2| and
the annular ?ange 22. The supporting member
23 is connected to the sleeve 24 by means of an
annular ?ange 26 and a plurality of vents 21 are
provided
to enter
and rise
sleeve 2d
through this ?ange 26 to permit air
the cylindrical supporting member 23
upwardly into the re?ector 2|. The
is adjustably secured along the length
of the tubular standard ID by means of set screws 30
28 or the like. The standard I0 is provided at a
point below the upper end thereof with an annu
lar rib or bead 29 which limits the downward
movement of the shield supporting sleeve 24. An
upper rib 36 is provided adjacent the upper end 35
of the standard In and this rib 30 limits the
upward movement of the sleeve 24.
A lamp socket supporting member 3| is secured
to the upper end of the tubular standard Ill and
a pair of lamp sockets 32 are secured to the 40
supporting member 3| in substantially upwardly
divergent relation and light bulbs 33 engage the
sockets 32 within the re?ector 2|. A tubular
conduit 34 is disposed concentrically of the stand
ard It] and extends downwardly through an open
vention,
ing 35 provided in the hollow base member l8
Figure 2 is an enlarged fragmentary vertical
section of the upper or indirect re?ector disposed
on top of the lamp,
Figure 3 is a fragmentary view in elevation
showing the manner of securing the louver sup
porting means to the upper reflector,
Figure 4 is a fragmentary vertical section of a
nector 36 of a type commonly called “Hickey”
which includes a pair of threaded sleeve mem
bers 31 disposed in spaced apart relation and
connected together by means of arcuate arms 38.
modi?ed form of switch structure for the several
5
Figure 5 is a fragmentary top plan of the de
vice.
light bulbs, and
and is. connected to the base structure by a con
In this manner the electric wires may be ex
tended through the hollow base i i into the lower
‘end oi'the conduit 34 and then brought upwardly
through a similar connector 39 which is secured :_
2
2,130,447
to the upper end of the conduit 34. The lamp
sockets 32 may be connected to the electric wires
through the upper connector 39. A relatively
short conduit or nipple 40 is threadably secured
at its lower end to the support 3| and to the con
nector 39. The nipple 40 at its upper end has a
socket 4| threadably secured thereto in which a
light bulb 42 is mounted.
An inverted re?ector generally designated as
43 is disposed above the re?ector 2| and com
prises a substantially conoidal-shaped inner por
sockets shown in Figure 1 are positioned inte
riorly of the re?ector 2|a.
In the use of this lamp structure the light bulbs
33 and 42 are adapted to be connected to a suit
able source of current supply and a selected one
or both of the switches 65 and 66 may be closed
to light up the desired light bulbs.
The upper re
?ector structure 43 may be initially adjusted by
rotation of the supporting nut 52 so as to adjust
the re?ector 43 relative to the light bulbs 33 and 10
also relative to the light bulb 42. The desired
tion 44 which is connected at its outer portion> , spread of light rays may be provided by vertical
to a downwardly extending frusto-conical shield adjustment of the inverted re?ector 2|. This ad
portion 45 terminating in a rib or bead 46 at the ' " justment is made by means of the set screws 28.
.When the light bulb 42 is lighted the rays there 15
15 lower end thereof. The re?ector 43 is provided
at its inner portion with a sleeve 41 engaging in
a socket or annular supporting member 48 car
ried by a cylindrical member 49." The cylindrical.
member 49 is disposed about the socket 4| and
20 is provided at its lower end with an inverted
frusto-conical portion 50 having holes 5| there
through so that air rising upwardly in the re?ec
tor 2| may pass upwardly through the cylindrical
member 49 and about the socket 4|.' The cylin
25 drical supporting member 49 is secured at its
lower end to a nut 52 which is threaded onto the
nipple 40. The nut 52 is provided with a reduced
upper portion 53 providing a shoulder or seat
against which the lower end of the supporting
30 member 49—5ll engages. The lower end of the
supporting member 49—50 is detachably secured
to the nut 52 by means of a set screw 54.
An upper re?ector 55 is disposed above the re
?ector 43 being secured thereto in upwardly
35 spaced relation by means of a plurality of bracket
members 56. The re?ector 55 comprises an in
ner re?ector member 51 and an outer re?ector
member 58 which is formed by turning over or
reverting the material of which the re?ector 51
40 is constructed and then extending the material
downwardly at its upper portion as at 59 to pro
vide a substantially cylindrical portion 59 and the
lower end of the cylindrical portion 59 is secured
to the upper end of a frusto-conical portion 60.
The lower end of the frusto-conical portion 60
terminates in a dependent ?ange 6| which is
spaced from the upper end or wall of the frusto
conical shield portion 45. The inner re?ector 51
is provided with a plurality of circumferentially
arranged button hole slots 62 in which'a plu
rality of louver supporting bolts 63 engage. A
plurality of annular‘ or cylindrical louvers 64 are
mounted on the supporting bolts 63 and are dis
posed in concentric relation being concentric to
55 the re?ector 51 and the center of the standard
In.
'
.
The base structure U as shownin Figure 1
is provided with a pair of switch members 65
and 66 which are disposed on the annular portion
60 l9 and are adapted to be connected to the wires
or conductors leading to ‘the light bulbs 33 and 42.
Preferably these switch members 65 and 66 are
of a type which willrpermit the lighting of the
light bulbs in either re?ector 2| or 55 or both or
65 if desired any one or more of the light bulbs in
the lower re?ector 2 I.
-
‘
'
, In Figure 4 there is'shown a slightly modi?ed
form of this light structure wherein the support
ing sleeve 23a is provided with a plurality of
70 switch members 65% and 66“. This structure may
be used where the standard Illa is constructed
from will be projected upwardly by the re?ect
ing upper side of the re?ector portion 44 and
by means‘of the inner re?ector 51. In addition
thereto certain light rays will pass between the
lower end' of the re?ector 5i and the upper side 20
of the re?ector 44 and then out through the
space 61 between the re?ector 55 and the re—
?ector 43. The annular louvers 64 may be read
ily removed for replacement of the light bulb 42
by unthreading the lock nuts 68 which are 25
threadably mounted on the bolts 63 and engage
on opposite sides of each button hole slot 62. By
providing a space between the upper re?ector 55
and the re?ector 43, the heat from the light bulb
42 may be readily dissipated in addition to pro 30
viding means for the passing of certain light rays
outwardly and downwardly about the exterior
of'the re?ector 43.
What is claimed is:
1. In a lamp structure including a base, a. a
standard secured to and extending upwardly of
said base, a plurality of socket members, means
securing said socket members to the upper por
tion of said standard, an inverted re?ector above
said socket members, means supporting said re
?ector from the upper end of said standard, a
second re?ector opposed to said ?rst re?ector and
disposed thereabove, means engaging said stand
ard and said second re?ector for supporting said
second re?ector, a socket member disposed con
centrically of said second re?ector for support
ing a light bulb above said second re?ector, said
second re?ector having a substantially cone
shaped re?ecting upper surface, a third re?ector
disposed above said second re?ector, bracket 50
means supporting said third re?ector above said
second re?ector, an outwardly ?ared apron in
tegral with said third re?ector and extending out
wardly and downwardly thereof, a plurality of
annular louvers disposed concentrically of said 55
third re?ector, bolts secured to said louvers, said
third re?ector having a plurality of circumfer
entially arranged button hole slots to receive said
bolts for detachably supporting said louvers.
2. In a lamp structure including a base, a 60
standard secured to and extending upwardly of
said base, a plurality of socket members, means
securing said socket members to the upper por
tion of said standard, an inverted re?ector about
said socket members, means supporting said re 65
?ector from the upper end of said standard, a
second re?ector opposed to said ?rst re?ector and
as part of a' ?oor lamp or the like. In this form
the lower inverted shield or re?ector 2W is simi
lar in every detail to the re?ector 2| and light
disposed thereabove, means engaging said stand
ard and said second re?ector for supporting said
second re?ector, a socket member disposed con
centrically of said second re?ector for support
ing a light bulb above said second re?ector, said
means including a threaded coupling whereby
said second re?ector may be Vertically adjusted
75 bulbs ‘and sockets similar to the light bulbs and
relative to said socket member therefor, said
3
2,130,447
second re?ector having a substantially cone
shaped re?ecting upper surface, a third re?ector
disposed above said second re?ector, bracket
means supporting said third re?ector above said
second re?ector, an outwardly ?ared apron in
tegral with said third re?ector and extending out
wardly and downwardly thereof, a plurality of
annular louvers disposed concentrically of said
third re?ector, bolts secured to said louvers, said
10 third re?ector having a plurality of circumfer
entially arranged button hole slots to receive said
bolts for detachably supporting said louvers,
3. In a lamp structure including a base, a
standard secured to and extending upwardly of
15 said base, a plurality of socket members, means
securing said socket members to the upper por
tion of said standard, an inverted re?ector about
said socket members, means slidable on said
standard supporting said re?ector on said stand
20 ard, means holding said slidable means in ad
justed position, a second re?ector opposed to
said ?rst re?ector and disposed thereabove,
means engaging said standard and said second
re?ector for supporting said second re?ector, a
socket member‘ disposed concentrically of said
second re?ector for supporting a light bulb above
said second re?ector, said second re?ector hav
ing a substantially cone shaped re?ecting upper
surface, a third re?ector ‘disposed above: said
second re?ector, bracket means supporting said
third re?ector above said'second re?ector, an 10
outwardly ?ared apron integral with said third
re?ector and extending outwardly and down
wardly thereof, a plurality of annular louvers dis
posed concentrically of said third re?ector, bolts
secured to said louvers, said third re?ector hav 15
ing a plurality of circumferentially arranged but
ton hole slots to receive said bolts for detachably
supporting said louvers.
HILYARD R. ROBINSON.
AKSEL J. C‘. KN'UDS'I'RUP.
20
Документ
Категория
Без категории
Просмотров
0
Размер файла
444 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа